CAMBRIDGE ENTOMOLOGICAL CLUB 
A regular meeting of the Club is held on the second Tues- 
day of each month (July, August and September, excepted) 
at 8:00 p.m. in Room B-455, Biological Laboratories, Divin- 
ity Ave., Cambridge. Entomologists visiting Boston are 
cordially invited to attend. 
FOR SALE 
BLACK STEEL INSECT PINS 
Trade Mark “Elephant", the ideal black insect pin. Trade 
Mark “Imperial", formerly Czechoslovakia. Both types in 
sizes No. 000-7. Also Minuten Nadeln. Request samples 
and prices from the manufacturer: Emil Arlt, Spezial- 
NADELFABRIK, SALZBURG, 2, P.O. BOX 76, AUSTRIA. 
